DE2404999A1 - Mehrkernige, halogenierte, aromatische benzylaether und verfahren zu deren herstellung - Google Patents
Mehrkernige, halogenierte, aromatische benzylaether und verfahren zu deren herstellungInfo
- Publication number
- DE2404999A1 DE2404999A1 DE2404999A DE2404999A DE2404999A1 DE 2404999 A1 DE2404999 A1 DE 2404999A1 DE 2404999 A DE2404999 A DE 2404999A DE 2404999 A DE2404999 A DE 2404999A DE 2404999 A1 DE2404999 A1 DE 2404999A1
- Authority
- DE
- Germany
- Prior art keywords
- ether
- reaction
- mol
- radical
- formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- -1 BENZYL ETHERS Chemical class 0.000 title claims description 24
- 238000000034 method Methods 0.000 title claims description 23
- 238000004519 manufacturing process Methods 0.000 title description 20
- 230000008569 process Effects 0.000 title description 7
- 239000000460 chlorine Substances 0.000 claims description 73
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 49
- 238000006243 chemical reaction Methods 0.000 claims description 25
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 claims description 19
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 18
- 229910052801 chlorine Inorganic materials 0.000 claims description 11
- 239000011541 reaction mixture Substances 0.000 claims description 7
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 6
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 6
- 125000003118 aryl group Chemical group 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 5
- 150000004707 phenolate Chemical class 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000012429 reaction media Substances 0.000 claims description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 4
- 125000001246 bromo group Chemical group Br* 0.000 claims description 4
- MHDVGSVTJDSBDK-UHFFFAOYSA-N dibenzyl ether Chemical class C=1C=CC=CC=1COCC1=CC=CC=C1 MHDVGSVTJDSBDK-UHFFFAOYSA-N 0.000 claims description 4
- 150000003254 radicals Chemical class 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 150000002334 glycols Chemical class 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 241000251730 Chondrichthyes Species 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001346 alkyl aryl ethers Chemical class 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- KHUXNRRPPZOJPT-UHFFFAOYSA-N phenoxy radical Chemical compound O=C1C=C[CH]C=C1 KHUXNRRPPZOJPT-UHFFFAOYSA-N 0.000 claims description 2
- WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical compound [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 claims 2
- KLGHJDHDVMDMDO-UHFFFAOYSA-N 2-ethoxypropylbenzene Chemical class CCOC(C)CC1=CC=CC=C1 KLGHJDHDVMDMDO-UHFFFAOYSA-N 0.000 claims 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 claims 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
- 239000000376 reactant Substances 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000000921 elemental analysis Methods 0.000 description 13
- 239000000243 solution Substances 0.000 description 13
- 238000010992 reflux Methods 0.000 description 11
- 238000003756 stirring Methods 0.000 description 11
- 239000002904 solvent Substances 0.000 description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 229940031826 phenolate Drugs 0.000 description 9
- 239000000843 powder Substances 0.000 description 9
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 8
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- ISWSIDIOOBJBQZ-UHFFFAOYSA-M phenolate Chemical compound [O-]C1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-M 0.000 description 8
- 125000004218 chloromethyl group Chemical group [H]C([H])(Cl)* 0.000 description 7
- SVHOVVJFOWGYJO-UHFFFAOYSA-N pentabromophenol Chemical compound OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br SVHOVVJFOWGYJO-UHFFFAOYSA-N 0.000 description 7
- BSWWXRFVMJHFBN-UHFFFAOYSA-N 2,4,6-tribromophenol Chemical compound OC1=C(Br)C=C(Br)C=C1Br BSWWXRFVMJHFBN-UHFFFAOYSA-N 0.000 description 6
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 6
- 239000008096 xylene Substances 0.000 description 6
- GBDZXPJXOMHESU-UHFFFAOYSA-N 1,2,3,4-tetrachlorobenzene Chemical compound ClC1=CC=C(Cl)C(Cl)=C1Cl GBDZXPJXOMHESU-UHFFFAOYSA-N 0.000 description 5
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 5
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 5
- 150000002170 ethers Chemical class 0.000 description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 4
- XTIGGAHUZJWQMD-UHFFFAOYSA-N 1-chloro-2-methoxyethane Chemical compound COCCCl XTIGGAHUZJWQMD-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 3
- 229910052794 bromium Inorganic materials 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 150000004820 halides Chemical class 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- IZUPBVBPLAPZRR-UHFFFAOYSA-N pentachlorophenol Chemical compound OC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl IZUPBVBPLAPZRR-UHFFFAOYSA-N 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- HCJLVWUMMKIQIM-UHFFFAOYSA-M sodium;2,3,4,5,6-pentachlorophenolate Chemical compound [Na+].[O-]C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl HCJLVWUMMKIQIM-UHFFFAOYSA-M 0.000 description 3
- 238000010626 work up procedure Methods 0.000 description 3
- CIPFDHFTBYJKQB-UHFFFAOYSA-N 1,2,3,4,5-pentachloro-6-(2,3,4,5,6-pentachlorophenoxy)benzene Chemical compound ClC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1OC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl CIPFDHFTBYJKQB-UHFFFAOYSA-N 0.000 description 2
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- BWVAOONFBYYRHY-UHFFFAOYSA-N [4-(hydroxymethyl)phenyl]methanol Chemical compound OCC1=CC=C(CO)C=C1 BWVAOONFBYYRHY-UHFFFAOYSA-N 0.000 description 2
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 description 2
- 229940073608 benzyl chloride Drugs 0.000 description 2
- 230000001588 bifunctional effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000012043 crude product Substances 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- CKFGINPQOCXMAZ-UHFFFAOYSA-N methanediol Chemical compound OCO CKFGINPQOCXMAZ-UHFFFAOYSA-N 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- SMSGVBSSPGZMES-UHFFFAOYSA-N 1,2,3,4,5-pentabromo-6-phenylmethoxybenzene Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OCC1=CC=CC=C1 SMSGVBSSPGZMES-UHFFFAOYSA-N 0.000 description 1
- YDNRGDROSRCQRU-UHFFFAOYSA-N 1,2,3,5-tetrachloro-4,6-bis(chloromethyl)benzene Chemical compound ClCC1=C(Cl)C(Cl)=C(Cl)C(CCl)=C1Cl YDNRGDROSRCQRU-UHFFFAOYSA-N 0.000 description 1
- IYGDLOMSJZQSGY-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3,6-bis(chloromethyl)benzene Chemical compound ClCC1=C(Cl)C(Cl)=C(CCl)C(Cl)=C1Cl IYGDLOMSJZQSGY-UHFFFAOYSA-N 0.000 description 1
- HRSCBOSGEKXXSI-UHFFFAOYSA-N 1,3,5-tribromo-2-(2,4,6-tribromophenoxy)benzene Chemical compound BrC1=CC(Br)=CC(Br)=C1OC1=C(Br)C=C(Br)C=C1Br HRSCBOSGEKXXSI-UHFFFAOYSA-N 0.000 description 1
- DMHZDOTYAVHSEH-UHFFFAOYSA-N 1-(chloromethyl)-4-methylbenzene Chemical compound CC1=CC=C(CCl)C=C1 DMHZDOTYAVHSEH-UHFFFAOYSA-N 0.000 description 1
- MVTKJCAAJPVUHJ-UHFFFAOYSA-N 1-ethoxyethylbenzene Chemical compound CCOC(C)C1=CC=CC=C1 MVTKJCAAJPVUHJ-UHFFFAOYSA-N 0.000 description 1
- JOLQKTGDSGKSKJ-UHFFFAOYSA-N 1-ethoxypropan-2-ol Chemical compound CCOCC(C)O JOLQKTGDSGKSKJ-UHFFFAOYSA-N 0.000 description 1
- UGHIQYNKFXEQPU-UHFFFAOYSA-N 2,3-dichloro-1,4-dimethylbenzene Chemical group CC1=CC=C(C)C(Cl)=C1Cl UGHIQYNKFXEQPU-UHFFFAOYSA-N 0.000 description 1
- QWBBPBRQALCEIZ-UHFFFAOYSA-N 2,3-dimethylphenol Chemical compound CC1=CC=CC(O)=C1C QWBBPBRQALCEIZ-UHFFFAOYSA-N 0.000 description 1
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- WJQOZHYUIDYNHM-UHFFFAOYSA-N 2-tert-Butylphenol Chemical compound CC(C)(C)C1=CC=CC=C1O WJQOZHYUIDYNHM-UHFFFAOYSA-N 0.000 description 1
- SFFDJWPLFTUFQC-UHFFFAOYSA-N 3-ethoxybutan-2-ol Chemical compound CCOC(C)C(C)O SFFDJWPLFTUFQC-UHFFFAOYSA-N 0.000 description 1
- HJHFJCUIVDTESF-UHFFFAOYSA-N 3-methoxybutan-2-ol Chemical compound COC(C)C(C)O HJHFJCUIVDTESF-UHFFFAOYSA-N 0.000 description 1
- QRUOTIJTSNETKW-UHFFFAOYSA-N 4-ethoxybutan-1-ol Chemical compound CCOCCCCO QRUOTIJTSNETKW-UHFFFAOYSA-N 0.000 description 1
- KOVAQMSVARJMPH-UHFFFAOYSA-N 4-methoxybutan-1-ol Chemical compound COCCCCO KOVAQMSVARJMPH-UHFFFAOYSA-N 0.000 description 1
- 125000006181 4-methyl benzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000000174 L-prolyl group Chemical group [H]N1C([H])([H])C([H])([H])C([H])([H])[C@@]1([H])C(*)=O 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- SXDBWCPKPHAZSM-UHFFFAOYSA-M bromate Chemical group [O-]Br(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-M 0.000 description 1
- SXDBWCPKPHAZSM-UHFFFAOYSA-N bromic acid Chemical group OBr(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-N 0.000 description 1
- 125000005997 bromomethyl group Chemical group 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 229960003750 ethyl chloride Drugs 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 235000019256 formaldehyde Nutrition 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 230000026030 halogenation Effects 0.000 description 1
- 238000005658 halogenation reaction Methods 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 210000000936 intestine Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- IZUPBVBPLAPZRR-UHFFFAOYSA-M pentachlorophenolate Chemical compound [O-]C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl IZUPBVBPLAPZRR-UHFFFAOYSA-M 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 150000003738 xylenes Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/16—Preparation of ethers by reaction of esters of mineral or organic acids with hydroxy or O-metal groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2404999A DE2404999A1 (de) | 1974-02-02 | 1974-02-02 | Mehrkernige, halogenierte, aromatische benzylaether und verfahren zu deren herstellung |
| GB4189/75A GB1484794A (en) | 1974-02-02 | 1975-01-30 | Halogenated benzyl ethers and a process for their production |
| FR7502922A FR2259803B1 (cs) | 1974-02-02 | 1975-01-30 | |
| BE152871A BE824977A (fr) | 1974-02-02 | 1975-01-30 | Benzylethers aromatiques halogenes polycycliques et procede d'obtention |
| NL7501174A NL7501174A (nl) | 1974-02-02 | 1975-01-31 | Werkwijze voor het bereiden van meerkernige ogeneerde aromatische benzylethers. |
| IT47957/75A IT1029429B (it) | 1974-02-02 | 1975-01-31 | Eteri benzilici aromatici alogenati polhnucleari o procedimento per la lord produzione |
| JP50014202A JPS50108234A (cs) | 1974-02-02 | 1975-02-03 | |
| US05/610,478 US4039587A (en) | 1974-02-02 | 1975-09-04 | Method of preparing polynuclear, halogenated, aromatic benzyl ethers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2404999A DE2404999A1 (de) | 1974-02-02 | 1974-02-02 | Mehrkernige, halogenierte, aromatische benzylaether und verfahren zu deren herstellung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2404999A1 true DE2404999A1 (de) | 1975-08-21 |
Family
ID=5906417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2404999A Ceased DE2404999A1 (de) | 1974-02-02 | 1974-02-02 | Mehrkernige, halogenierte, aromatische benzylaether und verfahren zu deren herstellung |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS50108234A (cs) |
| BE (1) | BE824977A (cs) |
| DE (1) | DE2404999A1 (cs) |
| FR (1) | FR2259803B1 (cs) |
| GB (1) | GB1484794A (cs) |
| IT (1) | IT1029429B (cs) |
| NL (1) | NL7501174A (cs) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4710315A (en) * | 1984-04-16 | 1987-12-01 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Anisotropic compounds and liquid crystal mixtures therewith |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2650117C2 (de) * | 1976-10-30 | 1983-08-04 | Dynamit Nobel Ag, 5210 Troisdorf | Bromhaltige oligomere Äther |
| DE2929914A1 (de) * | 1979-07-24 | 1981-02-19 | Dynamit Nobel Ag | Verfahren zur herstellung oligomerer bromhaltiger xylylen-bisphenol-aether |
-
1974
- 1974-02-02 DE DE2404999A patent/DE2404999A1/de not_active Ceased
-
1975
- 1975-01-30 BE BE152871A patent/BE824977A/xx unknown
- 1975-01-30 FR FR7502922A patent/FR2259803B1/fr not_active Expired
- 1975-01-30 GB GB4189/75A patent/GB1484794A/en not_active Expired
- 1975-01-31 IT IT47957/75A patent/IT1029429B/it active
- 1975-01-31 NL NL7501174A patent/NL7501174A/xx unknown
- 1975-02-03 JP JP50014202A patent/JPS50108234A/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4710315A (en) * | 1984-04-16 | 1987-12-01 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Anisotropic compounds and liquid crystal mixtures therewith |
| USRE36849E (en) * | 1984-04-16 | 2000-09-05 | Merck Patent Gmbh | Anisotropic compounds and liquid crystal mixtures therewith |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS50108234A (cs) | 1975-08-26 |
| NL7501174A (nl) | 1975-08-05 |
| GB1484794A (en) | 1977-09-08 |
| IT1029429B (it) | 1979-03-10 |
| FR2259803A1 (cs) | 1975-08-29 |
| BE824977A (fr) | 1975-05-15 |
| FR2259803B1 (cs) | 1978-07-13 |
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